【摘要】 文章介绍了柔度差和变形曲率用于结构损伤识别的理论。通过对一个简支梁的仿真计算表明,两种方法均能对单个损伤单元进行定位,并随着损伤程度的增大识别愈加明显,但对于多位置损伤识别,变形曲率法比柔度差值法更精确,且不需要健康结构的信息作为基线,适合工程损伤的快速动力学检测。更多还原

【Abstract】 In this paper,theories of flexibility difference and deformation curvature which identify structural damage are introduced.A simply supported beam is simulated,the results show that they can also identify one damaged location and the effect is more obvious when damaged extent enhances.But deformation curvature is more efficient than flexibility difference in multiple damaged beams,and it is suitable to dynamic detection without information of undamaged structure.更多还原